Talk:Lactone
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Hallo
[edit]What do you mean whit the radicals?
This are terms which are outdated!
Better use alcohol and carboxylicacid group as names! — Preceding unsigned comment added by Stone (talk • contribs) 12:04, 19 August 2003 (UTC)
Anyone know enough
[edit]Anyone know enough about Chemistry to expound on how Lactone Rings are used in Zubbles (colored soap bubbles)? — Preceding unsigned comment added by 66.93.212.216 (talk) 07:27, 20 November 2005 (UTC)
-- Well, from the popsci article it sounds like the dye is only active when the lactone is closed. There are three ways to increase the rate of the opening reaction:
1) Increase pressure. Rubbing deactivates the dye. 2) Increase temperature. Your body heat when you rub the dye supplies heat, too. 3) Add water. A large amount of water forces the reaction into the hydrated (open) form.
Naturally, 1 and 2 both require water too, but you only need to use an incredibly small amount of pure dye to color something brilliantly, so ambient water would be sufficient.
And that's about how this stuff works. It's really amazing. You guys are gonna be floored when you see some of the products it's going to be used in. Zubbles are just the beginning. — Preceding unsigned comment added by 65.25.222.3 (talk) 18:00, 25 January 2006 (UTC)
Baeyer-Villiger oxidation
[edit]- I think it should be said, that you can make lactones from cylic ketones by Baeyer-Villiger oxidation ChristianB 11:57, 6 July 2007 (UTC)
Lactone nomenclature
[edit]The description of lactone nomenclature was not at all clear. I tried to improve it, but probably got it all wrong. Specifically, it is not clear how one chooses the middle part (propio, butyro, etc) in the general case. Would someone please clarify/fix it? Thanks, and all the best, --Jorge Stolfi (talk) 03:16, 26 July 2009 (UTC)
"aceto = 2 carbons, propio = 3, butyro = 4, valero = 6, capro = 7, etc." Isn't valero 5 carbons and capro 6? The structure shown (δ-valerolactone) has only 5 carbons. 76.84.184.46 (talk) 21:09, 3 October 2009 (UTC)
- Yes, you're right. I have fixed it now. -- Ed (Edgar181) 22:45, 3 October 2009 (UTC)
Stability of beta and alpha lactones
[edit]The article claimed that beta-lactones are unstable, and that alpha-lactones do not exist. Yet the literature and chem catalogs seem to indicate that beta-lactones are reasonably stable, and even alpha-propiolactone is stable. Which is right? All the best, --Jorge Stolfi (talk) 03:16, 26 July 2009 (UTC)
GHB
[edit]Is it worth adding under the uses of lactone a paragraph on its usage in the manafacture of GHB? 139.133.7.11 (talk) 10:34, 20 February 2012 (UTC)